NPD发布了美国返校购物的数据，发现2012年这些用户购买预算比去年更高，但和往年一眼，他们的购物行为将稍后发生,Source: The NPD Group, Inc.,Source: The NPD Group, Inc.,Source: The NPD Group, Inc.,Source: The NPD Group, Inc.,Source: The NPD Group, Inc.,Methodology: Findings presented here are based on a poll of 2,500 members of The NPD Group’s online consumer panel. U.S. adults age 18 and older participated in the study, which was fielded between July 2 and July 10, 2012.,